Facebook event

January 15, 2013

Stephen Lam/Getty Images

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MENLO PARK, CA - JANUARY 15: Facebook Chairman and Chief Executive Mark Zuckerberg introduces Graph Search features during a presentation January 15, 2013 in Menlo Park. Facebook announced a search function that works within the website and allows users to search content that people have shared with you or is public.

Stephen Lam/Getty Images

1of8

MENLO PARK, CA - JANUARY 15: Facebook Chairman and Chief Executive Mark Zuckerberg introduces Graph Search features during a presentation January 15, 2013 in Menlo Park. Facebook announced a search function that works within the website and allows users to search content that people have shared with you or is public.